OP’s article is a break down of this article: https://www.reuters.com/investigates/special-report/usa-politics-violence/

I’m really glad they posted this, the Reuter’s article is harder to understand. My takeaway from OP’s article is this:

The incidents involve violence emanating from across the political spectrum, including dozens of cases of substantial property damage by leftists at political demonstrations. But of the 22 fatal incidents among the total tally, involving the deaths of 44 victims and 11 attackers, most were attributed to assailants, like Aldrich, who expressed beliefs associated with the extreme right, Reuters found.

In 15 of those attacks, in which 38 victims and seven attackers died, the perpetrator had articulated far-right beliefs, many of them targeting racial, sexual or other minorities. Only one fatal incident – the 2022 stabbing of a journalist by a public administrator in Nevada – was carried out by an assailant clearly identified with the left.